In the last 13 years, BMC has used around five various technologies for pothole preparation. Like jet patching machine technology during 2010-11, Austrian and Israeli asphalt mix, rapid hardening concrete, and reactive asphalt. While for pre-monsoon work, BMC mainly uses hot mix asphalt. “For pothole repairing, hot mix and cold mix technologies are traditional technologies. Cold mix asphalt is mainly used if there is continued rain,” officials added.

According to the records in 2011, the HC-appointed Standing Technical Advisory Committee suggested BMC use mastic asphalt for pothole-free bridges and flyovers. At the beginning of the monsoon last year, BMC used reactive asphalt and rapid hardening concrete to repair the potholes. However, due to limitations in the use of these technologies, mastic asphalt technology was used later.